ここは彼女がかつて住んでいた家です。

here (place physically close to the speaker, place pointed by the speaker while explaining); this place; these last (followed by a duration noun and a past sentence: time period before the present time of the speaker); these next ... (followed by a duration noun and a non past sentence: time period after the present time of the speaker); the next ...

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

she; her; her; girlfriend; sweetheart

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

once; before; formerly; ever; former; ex-; never yet; never before; first time; still not happened

to live (of humans); to reside; to inhabit; to dwell; to abide

house; residence; dwelling; family; household; lineage; family name

be; is